Math 402
CHAPTER 5 EXAM
FALL 2008
Copy the problem from the test form to the blue book. (not the directions, pictures, or word problems)
Show all required work for the problem in a neat and organized way as presented in the book and/or in class.
Skip a line after completing the problem.
Begin the following problem beneath the completed problem. (there should only be one column of work per page)
Once you reach the bottom of the page, continue working on the next page. (do not write on the back)
Complete all work for this test in your blue book. You may write on this test form, but nothing written on this test form will
be graded. Only the work in the blue book will be graded.
Complete, organized, and correct work using the methods taught in class including the correct use of symbols is required in
order to receive full credit. Partial or no credit will be given when work is incomplete. Each problem is worth 5 points.
For problems that require , use the approximation 3.14.
Sign your name on the line below this sentence to indicate that you have read and understood the instructions.
_________________________________________________________
Write a word name for the number.
1) 47.0638
forty-seven and six hundred thirty-eight ten-thousandths
Write the decimal number in standard form.
2) Eight and seventeen thousandths
8.017
Write the decimal as a fraction or mixed number in lowest terms.
3) 4.44
4
44
11
=4
100
25
Write decimal notation. If necessary, use repeating decimal notation.
47
4) - 15
100,000
-15.00047
5) -
33
20
-1.65
6)
3
11
0.27
Insert <, >, or = between the pair of numbers to form a true statement.
69
_____ 8.625
7)
8
8.625 = 8.625
1
Which number is larger?
8) 21.43 or 21.402
21.43
9) -27.06 or -27.3
-27.06
Round the number as indicated.
10) 0.72; round to the nearest thousandth.
.727
Evaluate the problem.
11) (b ÷ 7c)- h 2 , for h = -
1.4 ÷ 7 .4 - .2 .4 .08 -
3
, b = 1.4, and c = 0.4.
10
3 2
10
9
100
9
100
8
9
100 100
-
1
100
Perform the indicated operation. Write the result as a decimal.
12) 179.4 + 0.81 + 21.65 + 95 + 4.705
301.565
13) - 0.0001 × 8597.07
-0.859707
14) (6.4)(100)
640
15) 35 ÷ 0.07
500
16) -2.9 ÷ (-.04)
72..5
17)
194.2804
-0.001
-194280.4
2
Simplify by combining like terms.
18) 8.33 - 10.5x - 12.85x - 13.2
-4.87 - 23.35x
Find the circumference of the circle. Round to the nearest hundredth, if necessary.
19)
10.7 yd
C = 2(3.14)(10.7) = 6.28(10.7) = 67.196yd
67.20yd
For the next three problems you do not need to copy the list as it is written before showing your work.
Find the mean. If necessary, round to one decimal place.
20) 4, 4, 10, 5, 12, 9
4 + 4 + 10 + 5 + 12 + 9 44
=
= 7.3
6
6
7.3
Find the median. If necessary, round to one decimal place.
21) 10, 1, 29, 18, 24, 44, 36, 32
1, 10, 18, 24, 29, 32, 36, 44
(24 + 29)÷2 = 53 ÷2 = 26.5
Find the mode or modes (if any).
22) 1.3, 1.2, 0.5, 0.7, 1.2, 0.3, 0.7, 1.4, 0.3, 1.5, 1.9, 0.5, 1.2
1.2
Solve the problem.
23) A certain person burns 8.1 calories per minute while walking. How many calories will be burned if that person
walks for 3 hours?
8.1(60)(3) = 486(3) = 1458
Bonus. Solve. (10 points)
24) A circular firepit has a diameter of 37 inches. If the diameter is doubled, what will be the difference in the
measure of the circumferences?
C = 3.14(37) = 116.18
C = 3.14(2)(37) = 232.36
232.36 - 116.18 = 116.18
3